Very good quality N male - SMA male cable. 50 Ohm. Loss 0.46dB/m @ 2GHz. Less with lower frequencies. For even lower signal loss, please check LMR-400 cable beside.
Loss of the most common 3G/4G/5G/GSM cables
Loss of the most common 3G/4G/5G/GSM cables in the frequencies. HDF cables are also sold as for example LMR, but the losses of same number cables are equal. (For example. HDF-200<=>LMR-200<=>CFD-200). You can also see cable diameter in the table below. In general the cables with smaller diameter are more flexible.